There seems to be a bug where if your Company Name in the project settings is too long, the game you build will quietly fail to run. Looks like it might be the return of an old bug from many versions ago.

I haven't gotten a chance to tell OTEE about it, but if you are having trouble building a working player, check for that.

Thanks guys, you nailed the problem. Changing the company name gave me a perfectly good build! It's kind of anoying that the default name is one that stops games from working... I'll be sure to send OTEE a bug report as soon as I can.